Shells for weatherstripping



Oct. 2, 1956 c. e/ LYON SHELLS FOR WEATHERSTRIPPING Filed Sept. 21, 1953 Myve rflm" Q l'har'les 6 1. .1091

United States Patent 2,764,187 i SHELLS non wnxrrinnsrniri'me n Chai-lesG; Lyon; WinnipegeMnnitoba, (lanada I Applicafionseptember 21,- 19'ss',sm51 No.3s1, 3s1 BElaims. toma-"69 The modernrriethod of: weathers tripping doors or win wdows is to attach a thin wooden strip having rubber se-. oured to one edge thereof, to the frame of said members, and such that the full length of -themubber tWlli'fCGIltfiCt with the-door or window, when same rare closedgtoprevent tdrafts. visibility, a high grade of wood, freeof cracks or deterio- L Iations ,'must'be used; and such wood, is expensive; :"As this wood-also projects slightly fromn the frame,xit is Due to the thinnessiofirthe striprand its liable to receive considerable abuse, such as knocks o1 scrapings, and so become mutilated. This same abuse is also liable to break the adhesive, between the rubber and the wood, and when the rubber is hanging free in this manner, it presents an untidy and unsightly appearance. Further, if a metal door or window is weatherstripped with this material, the wood shows up in a definite contrast to the sharp lines of the metal, especially at the corners, and so spoils the overall appearance of the construction.

The principal objects of the present invention are as follows: First, to provide a flexible shell as a cover for the wood strip. Second, said flexible shell will be held in position by the same attaching means used for the Wood strip. Third, the shell will present a smooth sur face for painting, with clean-cut profile lines, and said surface will be considerably harder than wood to withstand abuse. Fourth, one edge of the shell will resiliently press against the rubber of the Weatherstripping to reinforce said rubber against breaking away from the wood, while the other edge of the shell will resiliently press against the frame such that a good coating of paint will cover the crack and give the shell the appearance of integrality with the frame.

A further object of the invention is to permit the use of a second grade wood to hold the rubber strip and so reduce the manufacturing cost. This is possible because the shell will cover all blemishes in the wood.

A still further object of the invention is to permit the use of such wood strips on metal doorways and window frames as the covering shell will have the same material appearance as these members.

With the above important objects in view the invention consists essentially in the construction and design of the shell, hereinafter more particularly described, reference being had to the accompanying drawings in which:

Figure 1 is an enlarged partial perspective view of one end of the shell comprising this invention.

Figure 2 is an enlarged partial perspective view of one end of a standard Weatherstrip.

Figure 3 is a sectional view showing the shell positioned over the Weatherstrip ready for fastening to a frame.

Figure 4 is a section, the same as Figure 3, but showing the shell and Weatherstrip secured to the frame.

Figure 5 is a section similar to Figure 4 but showing the shell and Weatherstrip secured to a metal frame.

In the drawings like characters of reference indicate corresponding parts in the several figures.

A standard Weatherstrip is shown in Figure 2 and coin.-

2,764,787 Fatented Oct. 2, 1956 prises .a strip of relatively thin .wood..1,, which-has.. a

fl igight-angle'd edge2 rand anopposite.slopingedget 3 therealong. A relatively square strip of. sponge. rubber. 4..is

glued, or otherwise fastened, to the said right-anglededge 5 .:2,..of...thew0od to form a-- two-pieceintegralunit. 'This .-.type of we atherstripping is well known.-.and..sold..in the retail trade as a standard commodity. .Whenused. for odours,or.windows,fthe. wood .strip is. nailed. to.the frametw orkof these memberswiththe attached rubbererlge 4 10 .thereofpositionedfor.contact with the door. or window,

over a long period of time. However, even thebest wood cannot maintain, or even .present, .a tfinishedz corner to matchdhecorners on metalwindows oradoors. .-In other awordsethis type .ofweath-erstriphas a tendency tocheapen the. appearance of metal constructions. whenu sedthereon.

Thedevice, comprising.thisinventionyis shown in Figure 1 and presents a thin-shell 5 ofsheet'metal. awhile I .-.-have.-.ment-ioned thatsheet rnetalds employed, itarwill be .-ur derstood that. other sheetmaterial, having (comparable characteristics for the purpose, may be used. The shell is formed from a fairly wide strip which is slightly curved in cross section. The strip is lengthwise bent, slightly offcentre, so that the outer convex face is provided with a sharp corner 6 the full length, and approximately at a angle. This bend divides the surface into a curved flange 7, slightly Wider than the front face of the wood strip 1, and a narrower curved flange 8, slightly wider than the sloping edge 3 of the wood strip 1. The finished cross section of the strip has the appearance of an inwardly centrally bent arch.

When the Weatherstripping is to be attached to a wood frame 9, the shell shown in Figure 1 is placed over the Weatherstripping shown in Figure 2 and the: two are then placed on the frame 9, as shown in Figure 3. It will be noticed that the edge of the flange 7 is resting against the rubber strip 4 of the Weatherstripping, while the edge of the flange 8 is against the frame 9. It will also be seen that the curved flanges 7 and 8 are not in contact with the wood strip 1 except at the obtuse corner 10 thereof. In fact there are spaces showingbetween the shell and the wood. A nail 11 is then placed against the flange 7 of the shell and hammer-driven therethrough into the wood strip 1 and the frame 9 (see Figure 4). Further nails are driven in all the Way along the shell, at spaced intervals, and in the same manner. As the nail is driven home, the head 12 draws the shell tightly up to the wood strip 1 so that the flange 7 flattens and the space there between and the Wood disappears. In so flattening, the edge of the flange 7 resiliently presses the rubber strip 4 against the frame 9 and so reinforces the rubber against.

breaking away from the face 2 of the wood strip. The bent corner 6 of the shell comes tightly up to the obtuse corner 10 of the wood strip and thus causesthe edge of the flange 8 to slide along the frame 9 but in tight resilient contact therewith so that the crack at this point is very moisture or damage. It also reinforces the rubber strip to maintain it in correct position with plenty of rubber showing for resilient contact with a closing door or win dow. This smooth surface can be painted to match with the frame and the sharp metallic edges gives a clean-cut line for finished appearance while the painted-over crack will make the assembly appear as a continuing part of the frame. As the wood strip 1 isconcealed by the shell, a

cost for same is slight and about equals the saving in the cost of the wood so that the manufacturing cost for the whole assembly is no higher than for the original weather- 'strip. 7

The same construction of shell and Weatherstrip is shown connected to a metal frame 13 in Figure 5. In this construction however, a self tapping screw 14 is employed instead of a nail, the screw threading into the metal of the frame. When fully screwed in, the head 15 seats against the shell to hold all parts tight By painting the metallic shell the same color as the metal frame, the two will perfectly blend to give a pleasing and finished appear-' ance as if the shell belonged and was erected at the same time. The shell could also be placed if desired for special constructions.

What I claim as my invention is:

1. In combination with a rectangular-shaped Weatherstrip of relatively soft material; at protecting shell therefor, comprising: an elongated strip of relatively harder material and of an inwardly centrally bent arch cross section, for partial reception thereover.

2. In combination with a rectangular-shaped weatherstrip of relatively soft material; a protecting shell there- 4 for, comprising: an elongated cross sectional curved strip of relatively harder material; said latter strip centrally bent therealong to present angularly disposed flanges on each side of the bend, of outwardly curved cross section, and for partial reception over said Weatherstrip.

3. In combination with a rectangular-shaped rubberedged Weatherstrip nail-secured to a framework; a protectingshell therefor, comprising: an elongated cross sectional curved strip of resilient material; said latter strip inwardly and lengthwise bent at an obtuse angle to present a sharp outward corner to said shell; and said shell receivable over said Weatherstrip and held thereto by said securing nails, with one side thereof contacting the rubber edge of said Weatherstrip and the other side contacting said framework.

References Cited in the file of this patent UNITED STATES PATENTS 

